Since libnm-wwan.so is not just a loadable module but also a shared library
that some plugin links against, build it as a shared library while avoiding
'-Wl,--no-undefined':

  https://github.com/mesonbuild/meson/issues/9492#issuecomment-973117289

diff --git a/src/core/devices/wwan/meson.build b/src/core/devices/wwan/meson.build
index 37ef738..18ac54f 100644
--- a/src/core/devices/wwan/meson.build
+++ b/src/core/devices/wwan/meson.build
@@ -4,8 +4,9 @@ wwan_inc = include_directories('.')
 
 linker_script = join_paths(meson.current_source_dir(), 'libnm-wwan.ver')
 
-libnm_wwan = shared_module(
+libnm_wwan = shared_library(
   'nm-wwan',
+  override_options: ['b_lundef=false'],
   sources: files(
   'nm-service-providers.c',
   'nm-modem-broadband.c',

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<tr><th>author</th><td>Marius Bakke &lt;marius@gnu.org&gt;</td><td class='right'>2021-08-01 23:23:32 +0200</td></tr>
<tr><th>committer</th><td>Marius Bakke &lt;marius@gnu.org&gt;</td><td class='right'>2021-08-01 23:23:32 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/guix/commit/gnu/packages?id=d2e102d4e4fc5288d93e1100e86b35938a9ac162'>d2e102d4e4fc5288d93e1100e86b35938a9ac162</a> (<a href='/guix/patch/gnu/packages?id=d2e102d4e4fc5288d93e1100e86b35938a9ac162'>patch</a>)</td></tr>
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<div class='commit-subject'>Merge branch 'master' into core-updates-frozen</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/guix/diff/?id=d2e102d4e4fc5288d93e1100e86b35938a9ac162'>Diffstat</a> (limited to 'gnu/packages')</div><table summary='diffstat' class='diffstat'>